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koreader/spec/unit/timeval_spec.lua
2019-02-28 17:31:39 +01:00

74 lines
2.3 KiB
Lua

describe("TimeVal module", function()
local TimeVal, dbg, dbg_on
setup(function()
require("commonrequire")
TimeVal = require("ui/timeval")
dbg = require("dbg")
dbg_on = dbg.is_on
end)
after_each(function()
if dbg_on then
dbg:turnOn()
else
dbg:turnOff()
end
end)
it("should add", function()
local timev1 = TimeVal:new{ sec = 5, usec = 5000}
local timev2 = TimeVal:new{ sec = 10, usec = 6000}
local timev3 = TimeVal:new{ sec = 10, usec = 50000000}
assert.is.same({sec = 15,usec = 11000}, timev1 + timev2)
assert.is.same({sec = 65,usec = 5000}, timev1 + timev3)
end)
it("should subtract", function()
local timev1 = TimeVal:new{ sec = 5, usec = 5000}
local timev2 = TimeVal:new{ sec = 10, usec = 6000}
assert.is.same({sec = 5,usec = 1000}, timev2 - timev1)
assert.is.same({sec = -5,usec = -1000}, timev1 - timev2)
end)
it("should guard against reverse subtraction logic", function()
dbg:turnOn()
TimeVal = package.reload("ui/timeval")
local timev1 = TimeVal:new{ sec = 5, usec = 5000}
local timev2 = TimeVal:new{ sec = 10, usec = 5000}
assert.has.errors(function() return timev1 - timev2 end)
end)
it("should derive sec and usec from more than 1 sec worth of usec", function()
local timev1 = TimeVal:new{ sec = 5, usec = 5000000}
assert.is.same({sec = 10,usec = 0}, timev1)
end)
it("should compare", function()
local timev1 = TimeVal:new{ sec = 5, usec = 5000}
local timev2 = TimeVal:new{ sec = 10, usec = 6000}
local timev3 = TimeVal:new{ sec = 5, usec = 5000}
local timev4 = TimeVal:new{ sec = 5, usec = 6000}
assert.is_true(timev2 > timev1)
assert.is_false(timev2 < timev1)
assert.is_true(timev2 >= timev1)
assert.is_true(timev4 > timev1)
assert.is_false(timev4 < timev1)
assert.is_true(timev4 >= timev1)
assert.is_true(timev1 < timev2)
assert.is_false(timev1 > timev2)
assert.is_true(timev1 <= timev2)
assert.is_true(timev1 == timev3)
assert.is_false(timev1 == timev2)
assert.is_true(timev1 >= timev3)
assert.is_true(timev1 <= timev3)
end)
end)